Sistema de RPM con LM393

Here are strong ultra‑low‑Iq 1xAA-to-3.3 V boost candidates from the Flux library, suitable for NRF24L01+ burst loads. I included direct library links plus Datasheet links and package codes.
Shortlist: ultra‑low Iq 1.5 V -> 3.3 V boost converters

Table


PartUIDMPNPackageDatasheet
TPS61097A-33DBVTdb4efdec-d5ae-48aa-a8a8-cea7c3ee5bb3TPS61097A-33DBVTSOT‑23‑5 (SOT‑753)Datasheet
TPS613221ADBV10249418-8e88-4c98-8c93-a7c7e2340d4cTPS613221ADBVSOT‑23‑5Datasheet
TPS61099DRVac0a6360-fd67-4138-98b6-36d34b2cbd03TPS61099DRVWSON‑6 2x2 mmDatasheet
MCP16251T-I/CH8327c70a-03d3-438e-b7ef-b42d638fda9bMCP16251T-I/CHSOT‑23‑6Datasheet
Why these fit (datasheet-verified key points)
  • TPS61097A-33DBVT (best ultra‑low Iq with EN): Quiescent current IQ = 2–4 µA (min/typ); VIN operating range 0.9–5.5 V; has EN pin; switch current limit (typ) 400 mA. Source: TI datasheet.
  • TPS613221ADBV (best burst headroom from 0.9 V, fixed 3.3 V): VIN 0.9–5.5 V; startup ~0.87 V (typ); peak current limit family options up to >1 A; no dedicated EN pin (uses external true-shutdown). IQ = 6.5 µA typ. Source: TI datasheet.
  • TPS61099DRV (adjustable, very compact, low-power family): Adjustable 1.8–5.5 V output, 2x2 mm WSON. I can verify Iq/startup in the datasheet if you choose this family.
  • MCP16251T-I/CH (simple adjustable option with EN): No‑load input current 14–25 µA; startup ~0.82 V (typ at 3.3 V/1 mA), runs down to ~0.35 V after start; EN high ~70% VIN. Source: Microchip datasheet.
Quick guidance
  • Prioritize TPS61097A-33DBVT if minimizing sleep drain is critical and your NRF24L01+ burst current is modest (tens of mA). It has verified ultra‑low Iq and an EN pin.
  • Choose TPS613221ADBV if you need higher burst current margin (>~100 mA) directly from a single AA with 0.9 V start, and you can accept higher Iq and no EN pin.
  • Prefer TPS61099DRV if you want adjustable 3.3 V in a tiny package and likely very low Iq; I will confirm exact Iq/startup before locking in.
Want me to add one of these to your project and pull in its recommended inductor and capacitors, then wire it to the ATtiny85 and NRF24L01+? Tell me which MPN you prefer, and I will proceed.
Pick TPS61097A-33
Verify TPS61099 datasheet
Size output capacitor
Check assembly availability
GND
VCC


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LM393 Comporator Module

LM393 Comporator Module thumbnail
is a vertical mounting board with an LM393 comparator and 2 LEDs. #IoT #Arduino #part #sensor #LM393

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